package com.ruoyi.common.utils;

import java.lang.management.ManagementFactory;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.Calendar;
import java.util.Date;
import org.apache.commons.lang3.time.DateFormatUtils;

/**
 * 时间工具类
 *
 * @author ruoyi
 */
@SuppressWarnings("all")
public class DateUtils extends org.apache.commons.lang3.time.DateUtils
{
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};


    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate()
    {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate()
    {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime()
    {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow()
    {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format)
    {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date)
    {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date)
    {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts)
    {
        try
        {
            return new SimpleDateFormat(format).parse(ts);
        }
        catch (ParseException e)
        {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str)
    {
        if (str == null)
        {
            return null;
        }
        try
        {
            return parseDate(str.toString(), parsePatterns);
        }
        catch (ParseException e)
        {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate()
    {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate)
    {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 计算两个时间差(分)
     */
    public static long getDatePoor1(Date endDate, Date nowDate)
    {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        long time = diff/nm;
        return time;
    }

    /**
     * 获取指定时间后多少分钟
     * @param date
     * @param mon
     * @return
     */
    public static String getTimeAfter(Date date,int mon){
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        c.add(Calendar.MINUTE, mon);
        String time = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(c.getTime());
        return time;
    }
    /**
     * 获取指定时间后多少分钟
     * @param date
     * @param mon
     * @return
     */
    public static String getTimeDayAfter(Date date,int mon){
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        c.add(Calendar.DAY_OF_MONTH, mon);
        String time = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(c.getTime());
        return time;
    }

    public static Date getDateAfter(Date date,int mon){
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        c.add(Calendar.MINUTE, mon);
        return c.getTime();
    }
    /**
     * 获取过去几分钟的时间
     *
     * @param past
     * @return
     */
    public static String getPastDateMinute(int past) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.MINUTE, calendar.get(Calendar.MINUTE) - past);
        Date today = calendar.getTime();
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String result = format.format(today);
        return result;
    }

    /**
     * 获取过去几分钟的时间
     *
     * @param past
     * @return
     */
    public static Long getPastDateMinuteLong(int past) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.MINUTE, calendar.get(Calendar.MINUTE) - past);
        Date today = calendar.getTime();
        return  today.getTime();
    }

    /**
     * 计算年龄
     * @param strDate
     * @return
     * @throws Exception
     */
    public static int getAge(String strDate) throws Exception {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
        Date birthDay = sdf.parse(strDate);

        Calendar cal = Calendar.getInstance();
        if (cal.before(birthDay)) { //出生日期晚于当前时间，无法计算
            throw new IllegalArgumentException(
                    "The birthDay is before Now.It's unbelievable!");
        }
        int yearNow = cal.get(Calendar.YEAR);  //当前年份
        int monthNow = cal.get(Calendar.MONTH);  //当前月份
        int dayOfMonthNow = cal.get(Calendar.DAY_OF_MONTH); //当前日期
        cal.setTime(birthDay);
        int yearBirth = cal.get(Calendar.YEAR);
        int monthBirth = cal.get(Calendar.MONTH);
        int dayOfMonthBirth = cal.get(Calendar.DAY_OF_MONTH);
        int age = yearNow - yearBirth;   //计算整岁数
        if (monthNow <= monthBirth) {
            if (monthNow == monthBirth) {
                if (dayOfMonthNow < dayOfMonthBirth) {
                    age--;
                }
            } else {
                age--;
            }
        }
        return age;
    }

    /**
     * 获取几分钟后的时间
     *
     * @param date   时间
     * @param second 分钟
     * @return 日期字符串
     */
    public static String fewMinutesLater(Date date, Integer second) {
        try {
            // SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            Calendar newTime = Calendar.getInstance();
            newTime.setTime(date);
            // newTime.add(Calendar.SECOND,second);//日期加10秒
            newTime.add(Calendar.MINUTE, second);
            Date newDate = newTime.getTime();
            return DateFormatUtils.format(newDate, "yyyyMMddHHmmss");
        } catch (Exception ex) {
            ex.printStackTrace();
            return null;
        }
    }

    /**
     * 当前时间向推几小时
     *
     * @param ihour 小时
     * @return String
     */
    public static Date getBeforeHourTime(int ihour) {
        //(1)获取当前时间
        LocalDateTime date = LocalDateTime.now();
        //(2)获取当前时间的前几小时时间
        LocalDateTime localDateTime = date.minusHours(ihour);
        Date date1 = Date.from( localDateTime.atZone( ZoneId.systemDefault()).toInstant());
        return date1;
    }

    /**
     * 计算两个时间差
     */
    public static Long timeDifferenceDays (String startDate, String endDate)
    {
        DateFormat dft = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            Date star = dft.parse(startDate);//开始时间
            Date endDay=dft.parse(endDate);//结束时间
            Long starTime=star.getTime();
            Long endTime=endDay.getTime();
            Long num=endTime-starTime;//时间戳相差的毫秒数
            Long days =  num/24/60/60/1000;
            return days;
        } catch (ParseException e) {
            e.printStackTrace();
            return null;
        }

    }

    /**
     * 获得零点
     */
    public static String  getZeroHour(String startDate)
    {
        DateFormat dft = new SimpleDateFormat("yyyy-MM-dd");
        Date star = null;//开始时间
        try {
            star = dft.parse(startDate);
            String format = dft.format(star);
            return format.concat(" 00:00:00");
        } catch (ParseException e) {
            e.printStackTrace();
            return null;
        }
    }

    public static final String dateTime2(final Date date)
    {
        return parseDateToStr(YYYY_MM_DD_HH_MM_SS, date);
    }
}
